All Tools
JWT Generator
Generate signed JWT tokens locally in your browser. Supports HS256, HS384, and HS512.
All processing happens in your browser. Your data never leaves your device.
How to Use JWT Generator
- 1Paste or type your input in the left panel.
- 2Click Process or use the keyboard shortcut ⌘↵.
- 3View the result in the output panel. Use Copy to copy to clipboard or Download to save as a file.
This tool processes data locally in your browser. Nothing is sent to external servers.
Examples
Example input
# Example for JWT Generator
# Paste your content in the input panel above to get started.Frequently Asked Questions
What algorithms are supported?
HS256, HS384, and HS512 HMAC algorithms are supported.
Is my secret key stored?
No. Everything runs in your browser. Your secret never leaves your device.
Can I set expiration?
Yes, you can set a custom expiration time in the payload.
What is HS256?
HS256 is HMAC with SHA-256, the most common JWT signing algorithm.
Can I use this for production?
This tool is for development and testing. Always use secure key management in production.